Lubricating device



H. C. SHAMBLIN AND E. E. McKAY.

LUBRICATING DEVICE! APPLICATIQN FILED JULY 24,1919. RENEWED DEC. 27,1920.

1,372,253.. Patented Mar. 22,1921.

2 sHEETs sHEET I.

' ATTORNEYS A H. c. SHAMBLIN AND E. E. McKAY.

LUBRICATING DEVICE.

Patented Mar. 22, 1921;

WITNESSES I I 151%??? I}! Y a z zjmza A TTORIVEYS NORRIS FETERS ma. LIIMU WASHlNGTdN. D C.

' HARVEY o. SEAMBLIN AND nnwaan E. MCKAY, or COMMERCE; oKLA HoMa LUBRECATING DEVICE.

1,372,253. I V 1 Application filed July 24, 1919, SeriaINo. 13,076.

TocZZ whom it mag concern Be it known that we, HARVEY C. SHAM- nLrN and EDWARD E. McKay, citizens of the United States, and residents of Commerce, in the county of Ottawa and State .of Okla= homa, have inventeda' new and Improved Lubricating Device, ,of which the following is a full, clear, and exact description.

This invention relates to improvements in lubricatin devices and more )a'rticularl to a lub'ricator designed for use with internal combustion engines "and the like, 1n

which a partial vacuum causes a suction of air and the air drawn into the engine cylinder is caused to move through the vaporiz ing chamber to an improved lubricating device to vaporize the lubricant and carry it with the air in the form of a fine spray into the engine cylinder. 7 V

A further object is to provide an improved means for automatically controlling the level of lubricant in the vaporizing chamber.

A further object is to provide improved means for regulating the vacuum necessary to operate the device. 7 f

A further objectis to provide improvements of the character stated in which the entire operation is in accordance with the partial vacuum or movement of air so that the proper proportions of lubricant are pro- 1 vided in accordance with the speed of the engine.

WVit-h these and other objects in view the invention consists in certain novel features of construction, and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings I Figure 1 is a View in side elevation illustrating our improvements;

F 2 is a fragmentary view in section on the line 22 of Fig. 1;

Fig. is an end view; and

Fig. 4 is a view in longitudinal vertical section.

1 represents a supply tank and 2 a vaporizing chamber below the tank and secured thereto by means of screws 8 or other connecting devices. The tank 1 has an inlet 4 in its top normally closed by cover plates '5, and an air inlet pipe 6 communicates with one end of the vaporizing chamber 3, the 'latter preferably having an inclined lower wall 2", as clearly shown in Fig. 4.

Renewed Decembcri27, 1320. S m no.'43s,424.

T'is located fixed to a stem 8, the latter projecting upwardly through a cas1ng 9. A'

coiled spring 10in the casing 9 exerts downorricaf Specification of Letters Patent. Patented Mi g 22, 1921,

ward pressureon the valve stem tending to e 7 open the valve, and a winged nut 11 screwed onto the upper end or the stem regulates the spring pressure, while a screw abutment l2is provided below the valve to limit its openingmovement. This valve 7 is opened by a suction of the partial vacuum caused within the engine cylinder and does not open until the pressure of the spring 10 is overcome. This pressure can be varied by the adjustment of the winged nut 11, as willibe readily understood. j

The lubricant from tank 1 into the va poriz'ing chamber 2 is supplied by meansfof a feed device 1 3,whichmay be of thesight feed variety, if desired. This feed device 13 is connected by a cock 1 1 with tank 1 and by a T-coupling 15 with an inlet pipe 16 extending into the vaporizingchamber 2'.

' An ordinary pet cock 1? is located at the lower end of the feeddevice as shown. "A check valve '18 in pipe 16. engaging a valve seat l9 therein, is normally held in closed position by means of a float 20 supported in the lubricant 2'7, but when the lubricant falls below the desired level, the valve 18 will open to admit the lubricant to bring the level up to normal. An outlet passage 21 communicates with the vaporizing chamber 2 and is separated therefrom by a wall 22 extending below the liquid level in the vaporizing chamber and constituting in effect'atrap, as clearly shown in Fig. 4. A'check valve 23 permits a flow in one direction only through the passage 21 and a screw plug 24 passages of our improveddevice, as will" now be explained. The suction of air causes The outi is located above the check valve 23 and per 'mits access thereto when desired. let passage 21 is connected by any ordinary the valve 7 to open and admits the air into.

thevaporizing chamber 2, and thenceover.

the surface of the lubricant, the wall 22 com- Delling a close contact of the air with the lu- I 1 bricant. This compels the lubricant to be vaporized so that it escapes through theoute let 21 in the form of a spray or vapor thoroughly 'ning slowly,

It will be noted thatthe quantity of lubricant is controlled by the vacuum or movement of air. Hence, when the engine is runthe supply of lubricant willbe less than when the engine is running rapidly. There will -result an economy in lubricant and also a more'pen fect lubrication of parts lll ZLC-GOIdilllCB with necessity. r

appreciably Various slight changes may be made in the general form and arrangement of parts described without departing from the invention, and hence we do not limit ourselves to the precise details set forth but consider ourselves at liberty to make such changes and alterations 'as fairly 'fall within the spirit and scope oi the appended claims.

y We claim l. A lubricating device of the character described, comprising a supply tank, a vaporizingchamber, a feed mechanism connecting the tank with the vaporizing chamber, means for maintaining a uniform level of lubricant in the vaporizing chamber, an outlet passage for said vaporizing chamber, one wall of said passage projecting into the lubricant and forming a trap, and a check valve in said outlet passage. r

2. A lubricating device of the character described, comprising a supply tank, a vaporizing chamber below the same, a feed device connecting the tank and vaporizing chamber, a float valve in the vaporizing chamber controlling the admission oflubri- ,cant thereto, said chamber having an inlet at one end and an outlet at its other end,

a check valve in said outlet, and a wall separating the outlet from the vaporizing chamber and extending below the level of lubricant in the vaporizing chamber;

3. A lubricatingfdevice, comprising a vaporizing chamber adapted to contain lubricant, an air inlet passage communicatlng with said vaporlzlng chamber, a spring held suction operated valve in said inlet passage, an outlet passage for said vaporizing chamber, one wall of said passage projecting into the lubricant and forming a trap, and a check valve in the outlet passage.

4. A lubricating device of the character described, comprising a supply tank, a vaporizing chamber below the tank and communicating therewith, a float valve in the vaporizing chamber controlling the level of the lubricant therein, said vaporizing chambe having an inlet at one end and an outlet at its other end andone wall of said passage projecting into the lubricant and forming a trap, a check valve in said outlet, and a screw plug located in the upper portion of the chamber above the check valve.

5. A lubricating device ofthe character described, comprising a supply tank, avapori-zing chamber below the supply tank and communicating therewith, said vaporizing tank having an inclined bottom tapering downwardly from its trolling the levelof lubricant therein, said vaporizing chamber having a valved inlet and a valved outlet in its respective ends, and a wall at the outlet end of the chamber projecting into the lubricant to form a trap.

HARVEY C. SHAMBLIN. EDWARD E. MoKAY.,

inlet to its outlet'end, a float valve 1n the vaporizing chamber con-' 

